The Lancefield Collection of Streptococcus Strains
M Typing Reference Strains
Strain Directory: M type 1 to 67
Group A:
Type 55 Strains:
M55 Typing Reference Strain: A928/73/1
A431 A928/84/1 A928 (PNT 7S Potter) D428 D436 D438 D439 D440 D441 D442